Improvement in pumps



1 Anson pALDINc; or WHEELING, WEST VIRGINIA.

`Letters Potent No.104,688, claftecl June 2,8, 1870.

` `The;` Schedule referredto in these Letters Patent and making part f the sameA Teal! whom 'it 'may concern: A p p Be it known that I, ANSNBALDING, of lVheelin'g,

` in the county'of Ohio and State of West f'irginia, have i invented a new and` useful Improvement'in Pumps; and- I dohereby declare that the following. is a full,

`clear, and exact description of the saine, reference being had to the accompanying drawing making a part ofthisspecilication, `in which theiigurc is a sectional elevation.`

rllhis invention has for its object to produce a cony stunt streamfoi' -water from a pump-cylinder by the operation of a single double-acting hollow piston, which [receives water into its chamber alternately through orifices in its upper and lower disks, according as the pistonmores up and down and discharges the same through its hollowpiston-rod, the water having been filteredjpreviousf-to its introductionl to the cylinder.

. `In the'drawing; L y y y A is thepump-barrel, which is nmde'of glass, with parallel inner sides. p p i B B are hollow metal cylinders, each closed at one cndp which Vincloslethe ends of the barrel, and are fastened `together by rods b and nuts ill-'the usuali `llnanner.

- A hempen packing is'4 placed between the barrel and :the metal cylinders.`

In the bottomplate `B are `orifices bb', and between them a central orifice, through which passes arertical '.-valve-stcin, c, which bears a saucer-shaped filter, 1,at 4 itslower end,` and a s olid disk, c', at its upper end.

. Ois a hollow piston,'formed of upper andlower disks e e, fastened apart by rods andinuts,a ring, 717,.

' between the 'edges ot' the two disks, and leather strips j i clampedbetweenfthe edges of Vthe ring and disks,

form water-tight packings between itand the cylinder. "lhe disks e are provided with oriicese, and between them is the chamber k, in which is the transranged to cover the orifice e'.; Y

The piston-rod C' ishollow from, end to end.r rlhe operation is thus: `O11 forcing the piston downward, the lower packing t' is pressed against the interior of' the cylinderby the water in' the barrel. The disk e is thrust downward so as to close the orifices b', andthe wat-er enters the chamber k through the lower lon'fices'e", causes the valve l to close the upper orilic-es e", and finds its way out through the. hollow/'stein C. Y `f On raising the piston, the water above it is forced ont in a similar manner throughl the upper orifices e and hollow stem, and thewater outside the barrel enters through the filter d and orices b.

by 'Let-4 Anson BALDING.

GHAs. A.y PETTIT, SoLoN C. KEMQN.

and projecting sufficient-ly Aoutside of the piston to,4

-verse valve I, pierced with a central orifice, l', Vand ar' The rod O' is moved up and down by a level' at the y in combination with -the filter d 

